1 files changed, 46 insertions, 0 deletions
diff --git a/tests/ui/proc-macro/weird-hygiene.rs b/tests/ui/proc-macro/weird-hygiene.rs
new file mode 100644
index 000000000..7ba3f98a7
--- /dev/null
+++ b/tests/ui/proc-macro/weird-hygiene.rs
@@ -0,0 +1,46 @@
+// aux-build:weird-hygiene.rs
+
+#![feature(stmt_expr_attributes)]
+#![feature(proc_macro_hygiene)]
+
+extern crate weird_hygiene;
+use weird_hygiene::*;
+
+macro_rules! other {
+    ($tokens:expr) => {
+        macro_rules! call_it {
+            ($outer_ident:ident) => {
+                macro_rules! inner {
+                    () => {
+                        $outer_ident;
+                    }
+                }
+            }
+        }
+
+        #[derive(WeirdDerive)]
+        enum MyEnum {
+            Value = (stringify!($tokens + hidden_ident), 1).1 //~ ERROR cannot find
+        }
+
+        inner!();
+    }
+}
+
+macro_rules! invoke_it {
+    ($token:expr) => {
+        #[recollect_attr] {
+            $token;
+            hidden_ident //~ ERROR cannot find
+        }
+    }
+}
+
+fn main() {
+    // `other` and `invoke_it` are both macro_rules! macros,
+    // so it should be impossible for them to ever see `hidden_ident`,
+    // even if they invoke a proc macro.
+    let hidden_ident = "Hello1";
+    other!(50);
+    invoke_it!(25);
+}